/* Header */

.large-header {
	position: relative;
	width: 100%;
	background: #333;
	overflow: hidden;
	background-size: cover;
	background-position: center center;
	z-index: 1;
}

.demo-1 .large-header {
	background-image: url('../img/demo-2-bg.jpg');
}

.main-title {
	position: absolute;
	margin: 0;
	padding: 0;
	color: #f9f1e9;
	text-align: center;
	top: 50%;
	left: 50%;
	-webkit-transform: translate3d(-50%, -50%, 0);
	transform: translate3d(-50%, -50%, 0);
}

.demo-1 .main-title,
.demo-3 .main-title {
	text-transform: uppercase;
	font-size: 4.2em;
	letter-spacing: 0.1em;
}

.main-title .thin {
	font-weight: 200;
}

/* ****************************** */

.classBody {
	width: 100%;
	height: 100%;
	padding: 0;
	margin: 0;
}

.loginBack {
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
}

.formBg {
	background-color: rgba(0, 0, 0, 0.4);
	border-radius: 20px
}

.exDiv {
	width: 100%;
	padding-top: 15px;
}

.exDiv>img {
	width: 108px;
	height: 40px;
	float: left;
	margin-right: 10px
}

.lop {
	/* background-color: beige */
	border: none;
	background-color: white
}

.divBox {
	padding-top: 10px;
}

.Booktitle {
	padding-top: 30px
}

.Booktitle>p {
	color: white;
	text-align: center
}

.Booktitle>p:nth-child(1) {
	font-size: 28px
}

.Booktitle>p:nth-child(2) {
	font-size: 15px
}

.btnBlock {
	padding-bottom: 10px
}

.btnBlock>button {
	width: 100px;
	margin-right: 10px;
}

/* ********************* */

@media only screen and (max-width: 768px) {
	.demo-1 .main-title,
	.demo-3 .main-title,
	.demo-4 .main-title {
		font-size: 3em;
	}
	.demo-2 .main-title {
		font-size: 4em;
	}
}